Journal of Strength and Conditioning Research最新文献

{"title":"Associations of 2000 m Rowing Ergometer Performance With Load-Velocity Relationship Variables Obtained During Bilateral and Unilateral Prone Bench Pull and Leg Press.","authors":"Alejandro Pérez-Castilla, Mauricio E L Quidel-Catrilelbún, Andrés Baena-Raya, Sergio Miras-Moreno, Filipe Conceição, John F T Fernandes, Rodrigo Ramirez-Campillo","doi":"10.1519/JSC.0000000000005505","DOIUrl":"10.1519/JSC.0000000000005505","url":null,"abstract":"<p><strong>Abstract: </strong>Pérez-Castilla, A, Quidel-Catrilelbún, MEL, Baena-Raya, A, Miras-Moreno, S, Conceição, F, Fernandes, JFT, and Ramirez-Campillo, R. Associations of 2000 m rowing ergometer performance with load-velocity relationship variables obtained during bilateral and unilateral prone bench pull and leg press. J Strength Cond Res 40(10): 1286-1293, 2026-This study aimed to determine the associations between rowing performance with load-velocity profile obtained during bilateral and unilateral prone bench pull (PBP) and leg press (LP) exercises. Twenty-one competitive rowers completed a 2,000-m time-trial rowing ergometer test, along with 2 identical experimental sessions to assess bilateral and unilateral PBP and LP load-velocity profile variables: load-axis intercept ( L0 ), velocity-axis intercept ( v0 ), and the area under the load-velocity relationship line ( Aline ). Spearman's rank correlation coefficients ( ρ ) were used to examine the associations of load-velocity profile variables and interlimb asymmetries with 2,000 m rowing ergometer performance (total time). The goodness-of-fit of the simple regression models used to determine individual load-velocity profiles was very high for PBP and LP and velocity variables ( R2 ≥ 0.794). The bilateral variant showed higher velocities than the unilateral variants performed with self-reported preferred ( p ≤ 0.031, ES ≥ -0.48) and nonpreferred sides ( p ≤ 0.015, ES ≥ -0.61), except for LP v0 . Rowing performance (total time) exhibited moderate to very large negative correlations in 31 out of 36 cases with all load-velocity profile variables obtained from PBP and LP ( rs ≥ -0.440, p ≤ 0.046). In contrast, interlimb asymmetries did not correlate with rowing performance (-0.331 ≤ rs ≤ 0.422, p ≥ 0.057), except for LP Aline , which exhibited a significant relationship. In conclusion, load-velocity profiles are specific to the exercise variant and are highly sensitive to rowing performance. Bilateral exercises are recommended, because they more closely reflect the bilateral nature of force production during rowing ergometer performance.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"1286-1293"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148138424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Passive Blood Flow Restriction Accelerates Muscle Recovery After Exercise-Induced Muscle Damage in Healthy, Recreationally Active Females.","authors":"Mason A Howard, Sean M Lubiak, Jeffrey T Schmidt, Sten Stray-Gundersen, Katie R Hirsch, Michael A Trevino, Shane M Hammer, Taylor K Dinyer-McNeely, Haley C Bergstrom, Joshua L Keller, Ethan C Hill","doi":"10.1519/JSC.0000000000005518","DOIUrl":"10.1519/JSC.0000000000005518","url":null,"abstract":"<p><strong>Abstract: </strong>The purpose of this investigation was to examine the effects of passive blood flow restriction (pBFR) on indices of exercise-induced muscle damage (EIMD) following a muscle-damaging protocol. Eighteen females completed 6 visits occurring at the same time of day (±2 hours). Muscle damage was elicited by performing 3 sets of 25 maximal, unilateral, isokinetic (60·s -1 ), concentric-eccentric leg extensions on each leg. Each leg was then randomly assigned to receive pBFR (80% of total arterial occlusion pressure) or sham (20 mmHg) at 0, 24, 48, 72, and 96 hours post-EIMD. Indices of EIMD (muscle soreness [0-10 visual analog scale], limb circumference, range of motion [ROM], pain pressure threshold, and maximal voluntary isometric contraction [MVIC] torque) were assessed before EIMD (baseline) and at 0, 24, 48, 72, and 96 hours. Separate 2 (Condition [pBFR and sham]) × 6 (Time [baseline, 0, 24, 48, 72, and 96 hours]), repeated-measures ANOVAs were performed. Collapsed across Condition, muscle soreness increased post-EIMD and partially recovered at 72 and 96 hours (change from baseline [Δ]; Δ2.3 ± 2.3 au and Δ1.4 ± 1.5 au, respectively). Limb circumference increased in both conditions post-EIMD and recovered by 24 hours (pBFR: Δ0.4 ± 1.8 cm; sham: Δ0.5 ± 2.2 cm). ROM recovered sooner for pBFR (24 hours; Δ-6.1 ± 8.9°) than sham (24 hours; Δ-9.2 ± 9.4°), and ROM was greater for pBFR than sham at 48 hours post-EIMD. Pain pressure threshold was greater, collapsed across Time, for pBFR (4.40 ± 1.62 kgf) than sham (4.12 ± 1.63 kgf). Like ROM, MVIC torque recovered sooner for pBFR (24 hours; Δ-14.9 ± 25.3 Nm) than sham (24 hours; Δ-33.9 ± 22.1 Nm). Applying pBFR after EIMD resulted in a faster rate of return for MVIC and ROM in females, suggesting that pBFR may serve as an effective strategy to facilitate recovery of muscle function.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"1214-1222"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148055282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of High-Velocity Elastic Band Training on Physical Performance in Youth Soccer Players.","authors":"Dominykas Bartusevičius, Jūratė Stanislovaitienė, Sigitas Kamandulis, Daniele Conte","doi":"10.1519/JSC.0000000000005515","DOIUrl":"10.1519/JSC.0000000000005515","url":null,"abstract":"<p><strong>Abstract: </strong>The purpose of this study was to evaluate the effectiveness of a high-velocity elastic band training (HVEBT) program in youth soccer players. Eighteen male outfield players (age = 15.5 ± 0.4 years, stature = 175.1 ± 6.1 cm, body mass = 68.9 ± 7.3 kg, training experience = 9.9 ± 1.1 years, maturity offset = 1.8 ± 0.4 years) were recruited for the study. Players were randomly assigned to the experimental (HVEBT) and control groups. The study lasted 20 weeks (2 times per week) and consisted of 6 lower limb exercises targeting the main lower limb muscle groups (i.e., knee and hip flexors, extensors, and hip adductors) performed before the regular soccer training session; the control group did no additional activity. Before and after the experimental period, players' lower limb peak concentric torque measured with an isokinetic dynamometer at 180°·s -1 , Y-balance composite score for dominant (YBT.D) and nondominant (YBT.ND) leg, countermovement jump (CMJ) height, the 10 and 30 m linear sprint time, ball-kicking velocity for dominant (BKV.D) and nondominant (BKV.ND) legs were assessed. Results revealed time*group interaction for YBT.D, YBT.ND, CMJ, 10-m sprint time, and BKV.ND (ηp 2 =0.438-0.523, moderate), with post hoc within-group changes only in the HVEBT group, ranging from moderate to very large ( g = -2.22 to 1.85). Furthermore, within-group changes for BKV.D in both control ( g = -3.04 [-4.64 to -1.44]) and HVEBT groups ( g = -2.52 [-3.88 to -1.15]) were very large. Our findings suggest that a 20-week in-season HVEBT exercise program, in addition to regular soccer training, is effective in improving sprinting, jumping, ball-kicking, and dynamic balance performance in postpubertal youth soccer players.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"1278-1285"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148055375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding Differences in Swimming Velocity and Propulsive Force in the Butterfly Stroke: A Comparison Between Male and Female Butterfly Swimmers Through Discrete and Continuous Variables.","authors":"Mafalda P Pinto, Henrique P Neiva, Tatiana Sampaio, João P Oliveira, Tiago M Barbosa, Daniel A Marinho, Jorge E Morais","doi":"10.1519/JSC.0000000000005520","DOIUrl":"10.1519/JSC.0000000000005520","url":null,"abstract":"<p><strong>Abstract: </strong>Pinto, MP, Neiva, HP, Sampaio, T, Oliveira, JP, Barbosa, TM, Marinho, DA, and Morais, JE. Understanding differences in swimming velocity and propulsive force in the butterfly stroke: A comparison between male and female butterfly swimmers through discrete and continuous variables. J Strength Cond Res 40(10): e1130-e1136, 2026-The aim of this study was to verify differences in swimming velocity and propulsive force (PF) between male and female swimmers in the butterfly stroke based on discrete variables and Statistical Parametric Mapping (SPM-continuous variables). The sample comprised 20 young national-level swimmers (10 boys with 17.9 ± 1.2 years and 10 girls with 15.5 ± 1.4 years). Swimming velocity, intracyclic variation of swimming velocity, stroke frequency, stroke length, stroke index, and PF were measured as discrete variables. Swimming velocity and PF were also measured as continuous variables with SPM. As a discrete variable, swimming velocity presented significant differences between sexes with very large effect sizes ( p < 0.001, d = 2.46). The average PF also presented significant differences between sexes with very large effect sizes ( p < 0.001, d = 2.01). Male swimmers were faster and generated greater PF than female swimmers. As for SPM, velocity presented significant differences between sexes ( t = 3.355, p < 0.001) between ∼31 and ∼56% of the stroke cycle. This corresponds mainly to the end of the pull and most of the push phase. PF followed the same trend, with differences in the same phase of the time series. SPM allowed for identification where, within the stroke cycle, differences between sexes occurred in velocity and PF. Being in the same phase of the time series highlights the existing velocity-PF relationship. SPM can allow researchers and coaches to pinpoint the exact moments within the stroke cycle where differences between swimmers may occur.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"e1130-e1136"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148055381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Acute Effects of a Cycling Warm-Up With and Without Foam Rolling on Biceps Femoris Stiffness and Tissue Homogeneity.","authors":"Jacob E Earp, Lucas Joshi, Connor Mathisen, Davina Robinson, Carlos O Rehbein, William J Kraemer, Luis Peñailillo","doi":"10.1519/JSC.0000000000005513","DOIUrl":"10.1519/JSC.0000000000005513","url":null,"abstract":"<p><strong>Abstract: </strong>Earp, JE, Joshi, L, Mathisen, C, Robinson, D, Rehbein, CO, Kraemer, WJ, and Peñailillo, L. The acute effects of a cycling warm-up with and without foam rolling on biceps femoris stiffness and tissue homogeneity. J Strength Cond Res 40(10): 1238-1244, 2026-Biceps femoris (BF LH ) strains are common athletic injuries that are influenced by the muscle's mechanical properties. Proximal-to-distal variation in muscle stiffness impairs load sharing and increases focal strain in the proximal region, where strain injuries are most likely to occur, and is believed to contribute to injury risk. Therefore, understanding the effects of specific warm-up activities on BF LH intramuscular stiffness and homogeneity is warranted. Twenty-one healthy active subjects performed a bilateral cycling warm-up followed by a unilateral foam rolling intervention (CYL + FR) or cycling alone (CYL). Changes in proximal-, middle-, and distal-BF LH passive intramuscular stiffness were assessed through shear wave elastography at 15, 30, 45, 60, 90, and 120 minutes post-CYL and CYL + FR. Changes in overall and regional stiffness were compared between conditions using a 2 × 3 × 7 (Condition × Region × Time) mixed model ANOVA. Muscle stiffness decreased in both conditions (CYL: -1.349 ± 0.436 kP, CYL + FR: -1.095 ± 0.65 kP, p = 0.004) to a similar magnitude ( p = 0.707), and no condition by time effect was observed ( p = 0.480). However, proximal-BF LH stiffness decreased to a greater extent in CYL than CYL + FR (mean difference: -1.486 ± 0.629 kP, p = 0.028), but no differences were observed in the middle ( p = 0.548) or distal regions ( p = 0.216). Although foam rolling did not enhance or prolong changes in muscle stiffness, it did mitigate increases in stiffness heterogeneity that resulted from CYL in a pattern that would improve load sharing and reduce focal strain in the proximal-BF LH . Future work should examine whether promoting stiffness homogeneity through preactivity foam rolling translates to reduced hamstring strain incidence during subsequent activity.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"1238-1244"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148549399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seasonal Changes in Collegiate Division-I Soccer Athlete Countermovement Jump Performance.","authors":"Casey J Metoyer, Jonathon R Lever, Derek Langman, Valerie Smith-Hale, Meghan Reuter, Jonathan D Hauenstein, Alan Huebner, John P Wagle","doi":"10.1519/JSC.0000000000005504","DOIUrl":"10.1519/JSC.0000000000005504","url":null,"abstract":"<p><strong>Abstract: </strong>Metoyer, CJ, Lever, JR, Langman, D, Smith-Hale, V, Reuter, M, Hauenstein, JD, Huebner, A, and Wagle, JP. Seasonal changes in collegiate Division-I soccer athlete countermovement jump performance. J Strength Cond Res 40(10): e1081-e1086, 2026-This study examined seasonal changes in countermovement jump (CMJ) performance among NCAA Division I male and female soccer athletes across competitive and off-season phases. Twenty-three male and 16 female athletes completed CMJ testing at 6 in-season and 6 off-season time points using uniaxial force plates. Variables assessed included jump height, peak power, countermovement depth, modified reactive strength index, and eccentric-specific metrics such as force at zero velocity, eccentric rate of force development, and eccentric duration. Linear mixed models were used to analyze within-season changes. Concentric performance metrics remained stable during the in-season for both sexes, while significant declines in eccentric variables were observed. In men, countermovement depth and eccentric velocity decreased in the latter half of the season ( p < 0.05). Women exhibited more pronounced fatigue responses, including reductions in eccentric rate of force development, force at zero velocity, and increased eccentric duration ( p < 0.05). In the off-season, both men and women demonstrated significant improvements in peak power, relative power, and concentric impulse ( p < 0.05), with female athletes also improving jump height and eccentric metrics. These findings highlight the utility of CMJ force plate metrics in detecting neuromuscular fatigue and performance adaptation. While resistance training may help preserve concentric performance during the season, eccentric function seems more vulnerable, particularly in women, underscoring the need for targeted eccentric training and monitoring. The off-season presents a valuable window for restoring and enhancing lower-body power.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"e1081-e1086"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148391367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of a Novel 8-Week Strengthening Program on Isometric, Multidirectional Cervical Strength in Adolescent Male Rugby Players.","authors":"Robert Pryce, Roisin O'Brien, James Dillon, Neil Fleming","doi":"10.1519/JSC.0000000000005667","DOIUrl":"https://doi.org/10.1519/JSC.0000000000005667","url":null,"abstract":"<p><strong>Abstract: </strong>Pryce, R, O'Brien, R, Dillon, J, and Fleming, N. The effect of a novel 8-week strengthening program on isometric, multidirectional cervical strength in adolescent male rugby players. J Strength Cond Res XX(X): 000-000, 2026-Rotational head acceleration is a primary mechanism in sports-related concussion, yet standard neck conditioning often neglects the transverse plane. The purpose of this study was to compare a rotation-specific neck-strengthening protocol vs. a conventional program on multidirectional isometric strength in 32 adolescent male rugby players. Participants were stratified by baseline strength into 3 groups: Control, Conventional (flexion/extension/side-flexion), and Rotation (Conventional plus rotation). Supervised interventions ran twice weekly for 8 weeks, incorporating isotonic exercises and sphygmomanometer-monitored isometrics for individualized loading. Strength, circumference, and range of motion were assessed pre- and post-intervention by blinded assessors. A significance level of p < 0.008 was chosen for all outcome measures to control for family-wise error across the tests. Both the Conventional (p < 0.0001, d = 0.89) and Rotation (p < 0.0001, d = 0.84) programs resulted in significant improvements in total multidirectional neck strength with large effects, whereas the Control did not. Significant time effects were observed for flexion, extension, and rotation (p ≤ 0.0002; η2p = 0.39-0.62). For rotation specifically, a significant group × time interaction occurred (p = 0.003). Post hoc analysis confirmed that only the Rotation group significantly exceeded Control values (p = 0.028, d = 1.31), with many changes exceeding minimal detectable change at the 95% confidence level thresholds. Neck circumference increased significantly in both Rotation (p < 0.0001, d = 0.77) and Conventional (p = 0.008, d = 0.37) groups. Conventional neck training is effective for general conditioning but does not maximize rotational adaptations compared with plane-specific training. Developing cervical rotation strength may represent a modifiable biomechanical factor associated with concussion risk in youth sport.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149109876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Menstrual Cycle Phases on Neuromuscular Performance in Elite Adolescent Female Team Sport Athletes.","authors":"Azahara Fort-Vanmeerhaeghe, Raimon Milà-Villarroel, Montse Pujol-Marzo, Pep Casadevall-Sayeras, Ainhoa Nieto-Guisado, Oriol Nevot-Casas, Javier Peña","doi":"10.1519/JSC.0000000000005509","DOIUrl":"10.1519/JSC.0000000000005509","url":null,"abstract":"<p><strong>Abstract: </strong>Fort-Vanmeerhaeghe, A, Milà-Villarroel, R, Pujol-Marzo, M, Casadevall-Sayeras, P, Nieto-Guisado, A, Nevot-Casas, O, and Peña, J. Effects of menstrual cycle phases on neuromuscular performance in elite adolescent female team sport athletes. J Strength Cond Res 40(10): 1231-1237, 2026-Hormonal fluctuations across the MC may influence neuromuscular performance in female athletes; however, evidence in adolescent populations remains limited. This study aimed to examine the effects of 3 MC phases-early follicular (EFP), late follicular, and late luteal-on vertical jump performance and upper-body strength endurance in elite adolescent female team sport athletes. Thirty-two eumenorrheic basketball and volleyball athletes (mean age = 16.1 ± 1.3 years) were assessed across 3 consecutive natural MCs. Neuromuscular performance was evaluated in each phase using countermovement jump (CMJ; mean and maximum height) and bench press repetitions at 80% of 1-repetition maximum. Linear mixed-effects models were used to account for repeated observations nested within MCs and subjects. The menstrual phase was included as a fixed effect, with random intercepts for subjects and cycles nested within subjects. Significant main effects of phase were observed for CMJ mean height ( p < 0.001), CMJ maximal height ( p < 0.001), and bench press repetitions at 80% 1-repetition maximum ( p = 0.001), with lower performance during the EFP compared with later phases. These results suggest that the EFP, concurrent with menstruation, is associated with reduced neuromuscular performance in adolescent athletes. Practical applications include the importance of MC tracking and individualized training adjustments to optimize performance and potentially reduce injury risk during vulnerable phases.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"1231-1237"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148055288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Role of Y Balance Test Execution Time in Detecting Chronic Ankle Instability.","authors":"Marianna De Maio, Emanuel Festino, Francesca Di Rocco, Cristina Cortis, Philip X Fuchs, Andrea Fusco, Olga Papale","doi":"10.1519/JSC.0000000000005496","DOIUrl":"10.1519/JSC.0000000000005496","url":null,"abstract":"<p><strong>Abstract: </strong>De Maio, M, Festino, E, Di Rocco, F, Cortis, C, Fuchs, PX, Fusco, A, and Papale, O. The role of Y Balance Test execution time in detecting chronic ankle instability. J Strength Cond Res 40(10): e1031-e1038, 2026-Chronic ankle instability (CAI) affects postural balance, and identifying clinical parameters to assess CAI-related impairments remains challenging. This study assessed whether normalized anterior reach distance and normalized execution time during the Y Balance Test can discriminate between the CAI and healthy leg. Fifteen individuals with CAI performed 3 anterior Y Balance Test trials on CAI and healthy leg. Normalized anterior reach distance (%) and normalized execution time (s·% -1 ) were recorded. Repeated measures analysis of variance, logistic regression, and receiver operating characteristic curve analyses were conducted. Significance was set at p < 0.05. The CAI leg showed a lower ( p < 0.001) normalized anterior reach distance (83.00 ± 7.85%) than the healthy leg (88.40 ± 7.06%) and a higher ( p = 0.039) normalized execution time (CAI = 0.140 ± 0.03 s·% -1 ) than the healthy leg (0.128 ± 0.02 s·% -1 ). Logistic regression identified normalized anterior reach distance as a predictor of CAI (odds ratio = 1.13; p = 0.048), whereas normalized execution time did not reach statistical significance. Receiver operating characteristic analysis indicated a fair discriminatory capacity of normalized anterior reach distance (area under the curve = 0.716; cutoff = 84.11%) and normalized execution time (area under the curve = 0.676; cutoff = 0.132 s·% -1 ). Although normalized execution time was not a significant predictor of CAI, a high execution time in the CAI leg may reflect altered neuromuscular control and movement strategies. Therefore, combining reach distance with execution time may provide complementary information for assessing dynamic balance in individuals with CAI.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"e1031-e1038"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148361255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparisons of Lower-Body Muscular Function, Anthropometrics, and Body Composition Between Divisions I and III Collegiate Soccer Players.","authors":"Alexander H K Montoye, Matthew Przepiora, Toby Stauffer, Karin A Pfeiffer, Katherine Curtis, Jessica Tolzman, Matthew S Harkey, William Burghardt","doi":"10.1519/JSC.0000000000005512","DOIUrl":"10.1519/JSC.0000000000005512","url":null,"abstract":"<p><strong>Abstract: </strong>Montoye, AHK, Przepiora, M, Stauffer, T, Pfeiffer, KA, Curtis, K, Tolzman, J, Harkey, MS, and Burghardt, W. Comparisons of lower-body muscular function, anthropometrics, and body composition between Divisions I and III collegiate soccer players. J Strength Cond Res 40(10): e1120-e1129, 2026-This study compared anthropometric characteristics, lower-body muscular function, and body composition outcomes in collegiate Division I (DI) and Division III (DIII) men's and women's soccer players. Cross-sectional testing was conducted in 49 men and 43 women from 2 National Collegiate Athletic Association DI and DIII teams. Outcome measures included anthropometrics (height, weight), muscular function (countermovement jump height and power, eccentric hamstring maximal force, hip abduction, and adduction maximal force), and body composition (women only; total and regional bone mineral density, fat mass, lean mass). Two-way analysis of variance compared outcomes between divisions and across player positions. DI women were taller (∼1.7 cm) than DIII women, but no other anthropometric measures differed between divisions. DI women had significantly greater countermovement jump height (∼8 cm; 35%), absolute and relative jump power (∼12%), hip abduction strength (∼37%), and torso lean mass and lower body fat (23.6 vs. 28.4%) than DIII women. DI women had significantly lower bone mineral density in the arms and ribs and a lower Z-score (0.8 vs. 1.4), though all values were within healthy ranges. DIII men had higher absolute and relative jump power (∼5-9%) than DI men, particularly because of defender-specific differences, while other muscular function measures did not differ by division. In summary, some division- and position-level differences existed in lower-body muscular function and body composition, particularly among women. These findings highlight the importance of evaluating athletic performance alongside health-related indicators and support sex- and position-specific approaches to athlete monitoring across collegiate divisions.</p>","PeriodicalId":17129,"journal":{"name":"Journal of Strength and Conditioning Research","volume":" ","pages":"e1120-e1129"},"PeriodicalIF":3.0,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148055253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}